going by train to badalling great wall

Sorry, there is no direct train from your hotel to the wall. You need to take S2 train from Beijing North Railway Station to reach the wall. If you plan to take the subway, you need to walk around 610 meters to reach Dengshikou station to take subway line 5. Get off at Yonghegong station and change subway line 2 to get off at Xizhimen Station. Then you need walk around 1 kilometer to reach the railway station. Since Beijing subway ticket price increase at the end of this month, you may spend CNY 5 to 6 by subway. The ticket for S2 train is CNY 6.

It takes around one hour to reach the railway station by subway. Then it takes around 1 hour and 10 minutes to reach the wall by S2 train. So you spend at least four hours on the way. Spending around 1.5 hours to climb and get down the wall is enough. If you want to save your time, you may climb the wall and take the cable car to get down.

There is no direct bus from the wall to the ski resort. You need to take no.919 bus from the wall and get off at Xibozi station and then walk around 2 kilometers to reach the ski resort. Of course you can find a taxi to take you there.